Referring to Problem, you are now accelerating the brick upward. (a) How many forces act on the brick in this case? (b) Identify these forces. (c) Are these forces equal in magnitude and opposite in direction? (d) Are these forces an action-reaction pair? Explain.
Problem
You hold a brick at rest in your hand. (a) How many forces act on the brick? (b) Identify these forces. (c) Are these forces equal in magnitude and opposite in direction? (d) Are these forces an action-reaction pair? Explain.
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